How To Fix CE556 - Internal error in number assignment

SAP Error Message - Details

• Message type: E = Error

• Message class: CE - CAPP messages

• Message number: 556

• Message text: Internal error in number assignment

What causes this issue?

An error in the assignment of an internal number arose when creating
a CAPP element.

How to fix this error?

INCLUDE NA_SYSAD1

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CE556 - Internal error in number assignment ?

  The SAP error message CE556, which states "Internal error in number assignment," typically indicates an issue with the internal number assignment mechanism in SAP. This error can occur in various contexts, such as when creating or processing documents that require unique identifiers, like invoices, purchase orders, or other transactional data.
  Causes:
  
  
  Number Range Issues: The most common cause is a problem with the number range configuration. This could be due to:
  
  The number range being exhausted (i.e., all available numbers have been used).
  The number range not being properly defined or activated.
  Conflicts between different number ranges.
  
  
  
  Database Issues: There may be underlying database issues, such as:
  
  Corruption in the number range tables.
  Locking issues in the database that prevent number assignment.
  
  
  
  Custom Code: If there are custom developments or enhancements in the system, they might interfere with the standard number assignment process.
  
  
  System Configuration: Incorrect configuration settings in the SAP system can also lead to this error.
  
  
  Solutions:
  
  
  Check Number Ranges:
  
  Go to transaction code SNRO (Number Range Objects) and check the relevant number range object for the document type you are working with.
  Ensure that the number range is defined correctly and that there are available numbers in the range.
  
  
  
  Adjust Number Range:
  
  If the number range is exhausted, you may need to extend it by adding more numbers. This can be done in the same SNRO transaction.
  Make sure that the number range is not locked or restricted.
  
  
  
  Check for Custom Code:
  
  Review any custom code or enhancements that might be affecting the number assignment process. If necessary, consult with your ABAP developers.
  
  
  
  Database Consistency:
  
  Run database consistency checks to ensure that there are no issues with the underlying tables.
  If you suspect corruption, you may need to restore from a backup or run repair utilities.
  
  
  
  SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates available that resolve known issues.
  
  
  
  System Logs:
  
  Review system logs (transaction SM21) and short dumps (transaction ST22) for any additional error messages or information that could provide more context about the issue.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: SNRO (Number Range Objects), SM21 (System Log), ST22 (Dump Analysis).
  Documentation: Review SAP documentation related to number range management for more detailed guidance on configuration and troubleshooting.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other users and their solutions.
  
  By following these steps, you should be able to diagnose and resolve the CE556 error in your SAP system.